Cata - The Vortex Pinnacle
Ouch. This one hurt, and it was mostly trash issues. I'll do my research and make a more detailed post later, but I did it at 81 (probably a level or two too early, but whatevs), still in my 251/264 gear.
Not nearly as much moving required as there was in Throne of the Tides, but some semi-complex fights, and some sick sick trash pulls.
And yes, Fat Tire, you really should utilize Crowd Control on trash in here, even on Normal.
Cata - Heroic - The Vortex Pinnacle
Just killed the first boss on heroic difficult in the vortex pinnacle, I havent done more heroic bosses yet, but this one is a fairly easy prey to any multibox team. Stay close to him the whole bossfight and you wont get much damage, I got stoneclaw glyph on each shaman and with 3 healing stream totems up I didint even have to heal myself, just sometimes my pally tank.
Doing more heroic bosses tomorrow and will give some feedback, perhaps frapsing some stuff
Edit 2 : 2nd boss down! - after 5 hours :)
Edit 3: First heroic clear! Last boss down after 3 trys! Btw he is impossible with 4x ele because he does a magic debuff rooting you and then you cant run into the grounding zone -> dead
http://img10.imageshack.us/img10/1604/test1wv.jpg